NGC7331 & Neighborhood

Image information:

Date: 08/26/2009
Equipment: SBIG ST2000XM with CFW10 and Astrodon I series Gen II LRGB filter set through WO ZS105ED telescope on Losmandy GM8 mount. WO ZS105ED working at f7.
Image type: LRGB
Exposure time: 9X10min Luminance binned 1X1, RG&B 9X5min each binned 2X2

Object information:

Object designations:

Object type:
Spiral Galaxy
Object size:
10' X 4'
Constellation: Pegasus

NGC7331 is one of the brightest galaxies not included in the Messier catalog. It is a spiral galaxy, similar in size and shape to our Milky Way. It is 50 million ly distant, and with diameter of 30 kly. Galaxies visible in vicinity of NGC7331 form just a visual group with NGC7331 and are in fact ten times more distant.

In the bottom left corner of the image another interesting group of galaxies, called Stephan's quintet, is visible. Four of the galaxies make a real compact group, while fifth (bluish one) is only a visual member of the group. The group is some 300 million ly distant.

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List of related images: